Event: Division 1

Opponent Rating Result
Martina Flint 1866 1 - 0
Tim M Turner 1883 ½ - ½
Richard D Hardy 1962 1 - 0
M Paul Townsend 2243 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2089 = (7954 + 400 * (2 - 1)) / 4)

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